CN111225858A - Cap and laminated peeling container - Google Patents
Cap and laminated peeling container Download PDFInfo
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- CN111225858A CN111225858A CN201880067037.2A CN201880067037A CN111225858A CN 111225858 A CN111225858 A CN 111225858A CN 201880067037 A CN201880067037 A CN 201880067037A CN 111225858 A CN111225858 A CN 111225858A
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- cap
- flow hole
- valve body
- base
- nozzle
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Abstract
Provided is a cap having a check valve which can be smoothly opened and closed. According to the present invention, there is provided a cap to be attached to a mouth portion of a container accommodating a built-in object, the cap including a valve body and a base, the valve body including a flow hole, wherein when internal pressure from the built-in object is not applied to an annular portion around the flow hole, an edge of the flow hole abuts against the base to close the flow hole, and when the internal pressure is applied to the annular portion around the flow hole, the valve body is elastically deformed so that the edge of the flow hole is separated from the base to open the flow hole.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to a cap provided with a check valve and a layered peeling container provided with the cap.
[ background of the invention ]
[ Prior art documents ]
[ patent document ]
[ patent document 1 ] Japanese patent laid-open publication No. 2013-95455
[ summary of the invention ]
[ problem to be solved by the invention ]
The slit valve of patent document 1 has a problem that it is difficult to discharge the contents without opening the slit valve when the container is slightly compressed.
The present invention has been made in view of such circumstances, and an object thereof is to provide a cap having a check valve that can be smoothly opened and closed.
[ MEANS FOR SOLVING PROBLEMS ] to solve the problems
According to the present invention, there is provided a cap to be attached to a mouth portion of a container accommodating a built-in object, the cap including a valve body and a base, the valve body including a flow hole, the valve body being configured such that when internal pressure from the built-in object is not applied to an annular portion around the flow hole, an edge of the flow hole abuts against the base to close the flow hole, the internal pressure is applied to the annular portion around the flow hole, and the valve body is elastically deformed so that the edge of the flow hole is separated from the base to open the flow hole.
In the slit valve disclosed in patent document 1, since the discharge valve needs to be largely deformed in order to open the slit provided in the discharge valve, the container cannot be removed by only slightly compressing the container.
On the other hand, in the cap of the present invention, the check valve is constituted by the base which is the valve body having the above-described configuration, and the check valve is opened even if the valve body is slightly separated from the base. And, the circulation hole of the valve body contacts the base, thereby closing the check valve. Therefore, the opening and closing operation of the check valve is smooth.
Various embodiments of the present invention are exemplified below. The embodiments shown below can be combined with each other.
Preferably, in the cap, the valve body includes a bowl-shaped portion, the flow hole is provided in a bottom portion of the bowl-shaped portion, and the valve body is configured to be elastically deformed so that the bowl-shaped portion is inverted when the internal pressure is applied to the annular portion around the flow hole.
Preferably, in the cap, the base is provided with an inner plug inserted into the mouth, the inner plug includes a cylindrical portion and a leg portion,
the leg portion is provided between the cylinder portion and the base, and the base is provided in the leg portion in a pillar shape.
Preferably, in the cap, the base is provided on an inner plug inserted into the mouth portion, the inner plug includes a cylindrical portion, a valve support portion is provided on an inner peripheral surface of the cylindrical portion, and the valve body includes a flange supported on the valve support portion.
Preferably, the cap includes a nozzle having a discharge cylinder portion through which the content is discharged, and the discharge cylinder portion is provided with a regulation wall that reduces a momentum of discharging the content.
Preferably, in the cap, the regulating wall is supported by a plurality of arm portions protruding from an inner surface of the nozzle.
Preferably, the delamination container includes a container body including an outer shell and an inner bag, and a cap, the inner bag being configured to contract with a decrease in contents, the cap being the above-described cap.
[ description of the drawings ]
Fig. 1 is a front view of a stacking and peeling container 1 according to embodiment 1 of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is a perspective view of the cap 2 in fig. 1.
Fig. 4 is a perspective view of the cap 2 of the same section as fig. 2.
In fig. 5, fig. 5A is a perspective view of the nozzle 23 and the cap 24 drawn out from fig. 4, and fig. 5B is a perspective view of the valve body 21 and the inner plug 22 drawn out from fig. 4.
Fig. 6A to 6C show the valve body 21, fig. 6A is a perspective view seen from the upper side, fig. 6B is a perspective view seen from the lower side, and fig. 6C is a cross-sectional view of the same cross section as fig. 2.
In fig. 7, fig. 7A to 7D show the inside plug 22, fig. 7A is a perspective view seen from the upper side, fig. 7B is a perspective view seen from the lower side, fig. 7C is a cross-sectional view of the same cross section as fig. 2, and fig. 7D is a cross-sectional view of a plane passing through the middle of the adjacent leg portions 22C (i.e., a plane rotated by 45 degrees about an axis passing through the center of the base 22a in the cross section of fig. 7C).
In fig. 8, fig. 8A to 8B show the nozzle 23, fig. 8A is a perspective view seen from the upper side, and fig. 8B is a plan view.
Fig. 9 is a sectional view of the cap 2 (the cover 24 is not shown) having the same section as that of fig. 2.
Fig. 10 is a sectional view showing a deformed state of the valve body 21 when a small compressive force is applied to the container.
Fig. 11 is a sectional view showing a deformed state of the valve body 21 when a large compressive force is applied to the container.
Fig. 12 shows a nozzle 23 of a delamination container 1 according to embodiment 2 of the present invention, fig. 12A is a perspective view, fig. 12B is a plan view, and fig. 12C is a sectional view taken along line B-B in fig. 12B.
Fig. 13 shows a nozzle 23 of a delamination container 1 according to embodiment 3 of the present invention, fig. 13A is a perspective view, fig. 13B is a plan view, and fig. 13C is a partially cut-away sectional perspective view.
Fig. 14 shows a nozzle 23 of a delamination container 1 according to embodiment 4 of the present invention, fig. 14A is a perspective view, fig. 14B is a plan view, and fig. 14C is a cross-sectional view taken along line C-C in fig. 14B.
In fig. 15, fig. 15A shows a state in which the built-in object 25 is discharged from the stacking and peeling container 1 to which the nozzle 23 of embodiment 3 is attached, and fig. 15B shows a state in which the built-in object 25 is discharged from the stacking and peeling container 1 to which the nozzle 23 of embodiment 4 is attached.
[ detailed description ] embodiments
The following describes embodiments of the present invention. Various feature items shown in the embodiments shown below may be combined with each other. Further, each feature independently establishes the invention. In the following description, the upper and lower means the upper and lower sides in a state where the container body 3 is erected as shown in fig. 1.
1. Embodiment 1
1-1. Integral structure
As shown in fig. 1 and 2A, a stacking and peeling container 1 according to embodiment 1 of the present invention includes a cap 2, a container body 3, and a valve member 5. The container body 3 includes a storage portion 7 for storing the content and a mouth portion 9 for discharging the content from the storage portion 7. The cap 2 is attached to the mouth portion 9. The cap 2 may be screw-mounted or press-cap mounted. The mouth portion 9 is provided with an engaging portion 9a for attaching the cap 2. The contents are discharged from the opening end 9b of the mouth 9.
As shown in fig. 2, the container body 3 includes an outer shell 12 and an inner bag 14 in the container portion 7 and the mouth portion 9. As the content decreases, the inner bag 14 peels off the outer shell 12, and the inner bag 14 separates from the outer shell 12 and contracts.
As shown in fig. 2, the valve member 5 is inserted into an outside air introduction hole 15 formed in the housing portion 7, and regulates the flow of air between the space G between the outer case 12 and the inner bag 14 and the outside. The mechanism of the valve member 5 may be, for example, a structure in which a gap between the edge of the outside air introduction hole 15 and the valve member 5 is opened and closed by the movement of the valve member 5 to open and close the outside air introduction hole 15 by the valve member 5, or a structure in which a through hole and an openable and closable valve are provided in the valve member 5 itself to open and close the through hole by the movement of the valve to open and close the outside air introduction hole 15. Note that, a structure in which the air inlet and outlet are regulated by attaching a filter to the outside air inlet hole 15 without providing the valve member 5, or a structure in which the outside air inlet hole 15 is closed by a finger lamp only when the contents are discharged may be adopted. Further, the outside air introduction hole 15 may be provided in the mouth portion 9, and a cap having a check valve communicating with the outside air introduction hole 15 may be used.
In any of the above-described configurations, the valve member 5 is configured such that the outside air introduction hole 15 is closed when the outer case 12 is compressed, and the inner bag 14 can be compressed, and that outside air is introduced into the space G when the compression force to the outer case 12 is released.
After the valve member 5 is mounted, the accommodating portion 7 is covered with a shrink film. At this time, the valve member 5 is mounted in the mounting recess 7a provided in the housing 7 so that the valve member 5 does not interfere with the shrink film. An air circulation groove 7b extending from the valve member mounting recess 7a in the direction of the mouth 9 is provided so that the valve member mounting recess 7a is not sealed by the shrink film. (see FIG. 1).
Further, with respect to the layer structure of the container body 3, the outer shell 12 is formed to have a thickness larger than the inner bag 14 so as to have high restorability. The outer shell 12 is composed of, for example, low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymers, and mixtures thereof. The housing 12 may also be a multi-layer structure. The inner bag 14 is preferably a multilayer structure. For example, an ethylene-vinyl alcohol copolymer (EVOH) layer made of an EVOH resin is used as the layer in contact with the outer layer, and an inner layer made of a polyolefin such as low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, an ethylene-propylene copolymer, or a mixture thereof is used as the layer in contact with the inner layer. Further, an adhesive layer is preferably used between the EVOH layer and the inner surface layer.
1-2. Concrete structure of cap 2
Next, the cap 2 will be described with reference to fig. 2 to 11. The cap 2 includes a valve body 21, an inner plug 22, a nozzle 23, and a cap 24.
< valve body 21 >
As shown in fig. 6, the valve body 21 includes a flow hole 21a, an annular portion 21b, a bowl-shaped portion 21c, a flange 21d, and a connecting portion 21 e. The valve body 21 is formed of an elastic body such as silicone rubber, and is elastically deformed by internal pressure from the built-in components.
The annular portion 21b is provided around the flow hole 21 a. The bowl-shaped portion 21c is a bowl-shaped portion, and a flow hole 21a is provided in a bottom portion 21c1 of the bowl-shaped portion 21 c. The flange 21d is provided on the outer periphery of the valve body 21. A connecting portion 21e is provided between the flange 21d and the bowl-shaped portion 21 c. In a state where no force is applied to the valve body 21, as shown in fig. 7C, the bottom 21C1 of the bowl 21C is flat.
< inner plug 22 >
As shown in fig. 7, the inside plug 22 includes a base 22a, a cylindrical portion 22b, a leg portion 22c, a valve body support portion 22d, and an engagement portion 22 e. The plug 22 is formed of a material (polyolefin or the like) having higher rigidity than the valve body 21, and is not substantially deformed by the internal pressure of the built-in object.
The base 22a is a pillar-like shape having a diameter larger than that of the flow hole 21a, and the upper surface 22a1 is a curved surface protruding upward. When the internal pressure from the built-in object is not applied to the annular portion 21b, as shown in fig. 4 and 9, the edge of the flow hole 21a abuts against the base 22a, thereby closing the flow hole 21 a.
As shown in fig. 9, the valve body 21 is attached to the inner plug 22 such that the bottom 21c1 thereof is pressed against the base 22 a. In this state, the bottom portion 21c1 is pressed against the base 22a, and the bottom portion 21c1 is elastically deformed into a shape along the curved surface of the upper surface 22a1 of the base 22 a. By elastically deforming the bottom portion 21c1 in this manner, the adhesion between the edge of the flow hole 21a and the upper surface 22a1 can be improved. Further, since the upper surface 22a1 of the base 22a is a curved surface, the upper surface 22a1 slightly enters the flow hole 21a, and the degree of contact between the edge of the flow hole 21a and the base 22a is further increased.
A leg 22c is provided between the cylindrical portion 22b and the base 22 a. In the present embodiment, a plurality of (4 in the present embodiment) leg portions 22c are provided at equal intervals (90-degree intervals in the present embodiment). The base 22a is supported by the leg 22 c. The base 22a is provided at a position coaxial with the cylindrical portion 22b, and the leg portion 22c is provided to connect the lower end of the cylindrical portion 22b and the lower portion of the base 22 a. The built-in objects can flow through the gaps 22f between the adjacent leg portions 22 c. The internal pressure from the built-in object passing through the gap 22f is applied to the annular portion 21 b.
The inner peripheral surface of the tube portion 22b is provided with a valve body support portion 22 d. The flange 21d is supported on the valve body support portion 22 d. The valve body support portion 22d is an inclined surface that becomes lower (away from the opening end 9 b) toward the radial outside. The surface of the flange 21d of the valve body 21 facing the valve body support portion 22d is an inclined surface in the same manner as the valve body support portion 22 d. With this structure, the valve body 21 is stably supported by the valve body support portion 22 d.
The outer peripheral surface of the cylindrical portion 22b is provided with an engagement portion 22 e. The engaging portion 22e is an annular projection for engaging the inside plug 22 with the nozzle 23.
< nozzle 23 >
As shown in fig. 5A and 8, the nozzle 23 includes an insertion cylinder portion 23a, a flange 23b, a discharge cylinder portion 23c, an engagement cylinder portion 23d, a regulation wall 23e, a discharge port 23f, a connection wall 23g, an engagement portion 23h, and a flow hole 23 i.
The insertion tube portion 23a is inserted into the insertion tube portion 9. The flange 23b is provided on the outer peripheral surface of the insertion tube portion 23a and abuts against the opening end 9b of the mouth portion 9. The inner plug 22 is disposed in the insertion tube portion 23 a. An engagement portion 23h is provided on the inner peripheral surface of the insertion tube portion 23 a. The engaging portion 23h is formed by an annular protrusion. The engagement portion 22e of the inner plug 22 engages with the engagement portion 23h, and the inner plug 22 is supported by the nozzle 23.
The discharge tube portion 23c and the insertion tube portion 23a are connected by a connecting wall 23 g. The contents are discharged through the discharge tube portion 23 c. The regulating wall 23e is provided in the discharge tube portion 23c, and the flow force for discharging the contents is reduced by the regulating wall 23 e. The regulation wall 23e is provided to protrude from the inner peripheral surface of the discharge tube portion 23 c. The regulating wall 23e has an inclined surface 23e1, and the inclined surface 23e1 is inclined so as to approach the discharge port 23f as it goes away from the inner peripheral surface of the discharge tube portion 23 c. As shown in fig. 8B, the regulating wall 23e is provided so as to overlap the flow hole 21a of the valve body 21 in a plan view. In the present specification, the term "in plan view" may be understood as meaning "in plan view" and may also be referred to as "when viewed in a direction in which the central axis of the mouth portion 9 extends". As shown in fig. 8, the regulating wall 23e is provided to have a circular arc portion 23e2 concentric with the flow hole 21 a. Therefore, the flow hole 23i between the inner surface of the discharge tube portion 23c and the regulation wall 23e has a fan shape.
The locking cylinder portion 23d is provided inside the insertion cylinder portion 23 a. The tube portion 22b of the inner plug 22 is disposed between the insertion tube portion 23a and the engagement tube portion 23 d. The locking cylinder portion 23d is configured to lock the open end 9b side of the valve body 21. The front end 23d1 of the locking tube portion 23d is an inclined surface that increases outward in the radial direction. The flange 21d is an inclined surface whose surface facing the front end 23d1 is inclined similarly to the front end 23d 1. With this configuration, the distance between the members (the valve body support portion 22d and the distal end 23d1) sandwiching the flange 21d is narrowed inward in the radial direction, and therefore the valve body 21 is stably supported between the valve body support portion 22d and the distal end 23d 1.
< cover 24 >
As shown in fig. 5A, the cover 24 includes a cylindrical portion 24a, an upper wall 24b, an opening portion 24c, and an engagement portion 24 d.
The engaging portion 24d is provided on the inner circumferential surface of the tube portion 24 a. The engaging portion 24d engages with the engaging portion 9a of the mouth 9, and the cap 24 is attached to the mouth 9. The upper wall 24b is provided above the cylindrical portion 24 a. The flange 23b is sandwiched by the upper wall 24b and the open end 9b, and the nozzle 23 is fixed between the cap 24 and the container body 3. The opening 24c is provided in the upper wall 24 b. The discharge tube portion 23c is provided to protrude from the cap 24 through the opening portion 24 c.
1-3. Action of the cap 2
Next, the operation of the cap 2 according to the present embodiment will be described.
When no external force is applied to the housing portion 7, since the internal pressure from the built-in object is not applied to the annular portion 21b, the flow hole 21a is closed by the edge of the flow hole 21a abutting against the base 22a as shown in fig. 9.
When a compressive force is applied to the housing portion 7, an internal pressure from the contents is applied to the annular portion 21b to elastically deform the valve body 21, and the edge of the flow hole 21a is separated from the base 22a to open the flow hole 21 a.
When the compression force is small, the valve body 21 is elastically deformed so that the bottom 21c1 of the bowl-shaped portion 21c floats as shown in fig. 10. At this time, the edge of the flow hole 21a is also separated from the base 22a to open the flow hole 21 a. In this way, the check valve constituted by the valve body 21 and the base 22a is opened only by slightly separating the valve body 21 from the base 22a, and therefore, the contents can be discharged only when the container is slightly compressed.
When a larger compressive force is applied to the housing portion 7, the valve body 21 is elastically deformed so as to invert the bowl-shaped portion 21c as shown in fig. 11. The regulation wall 23e is provided at a position where the bowl portion 21c does not come into contact even when the bowl portion 21c is deformed in this manner. Therefore, the regulation wall 23e does not interfere with the deformation of the bowl-shaped portion 21 c.
When the flow hole 21a is opened, the contents flow through the flow hole 21a to the discharge tube portion 23c, are reduced in flow force by the regulation wall 23e, and are discharged from the discharge port 23 f.
When the compression force applied to the housing 7 is released, the bowl-shaped portion 21c returns to its original shape by the restoring force of the valve body 21, and the edge of the flow hole 21a comes into contact with the base 22a, thereby closing the flow hole 21a again. The bowl-shaped portion 21c returns to its original shape slightly later than the time point when the compression force is released. Since the solid matter is removed from the base 22a by the flow of the liquid during this time difference, the possibility that the solid matter is sandwiched between the edge of the flow hole 21a and the base 22a is reduced.
1-4. Comparison with the prior art
The slit valve of patent document 1 is likely to be caught in a slit when a solid object having a large size is present, but the check valve of the present embodiment is difficult to catch even a solid object having a large size because the distance between the edge of the flow hole 21a and the base 22a is sufficiently large.
In the slit valve of patent document 1, since the slit is provided so as to penetrate the entire thickness direction of the discharge valve, the facing surfaces in the slit are in surface contact (surface-to-surface contact), but the check valve of the present embodiment is easy to approach in line contact (line-to-line contact) by reducing the contact area between the edge of the flow hole 21a and the base 22 a. The contact area between the edge of the flow hole 21a and the base 22a is reduced, and the solid matter is less likely to be caught.
In addition, although the split valve of patent document 1 requires a tool machining of the split port after the molding of the valve, this step increases the manufacturing cost, but since the valve body 21 of the present embodiment can form the flow hole at the time of molding, the tool machining after molding is not necessary, and the manufacturing cost can be reduced.
Further, in the check valve including the annular valve seat and the circular valve body provided in the middle thereof, when the pressure from the built-in object is biased and applied to the valve body, the valve body may tilt or the discharge of the built-in object may become unstable, but in the check valve of the present embodiment, the internal pressure from the built-in object is applied to the annular portion 21b and elastically deforms so as to lift the entire annular portion 21b, and therefore, it is difficult to tilt the valve body 21, and the built-in object is easily and stably discharged.
2. Embodiment 2
In the present embodiment, the position of the discharge port 23f is eccentric in the nozzle 23. Therefore, as shown in fig. 12B, the discharge port 23f is not concentric with the flow hole 21a in a plan view. Further, the discharge cylindrical portion 23c is provided with a regulation wall 23c1 inclined so as to be constricted as the discharge cylindrical portion 23c approaches the discharge port 23 f. The regulating wall 23c1 overlaps the flow hole 21a in plan view, and reduces the momentum of discharging the contents in the same manner as the regulating wall 23e of embodiment 1.
3. Embodiment 3
In the present embodiment, the position of the discharge port 23f is not eccentric in the nozzle 23. Therefore, as shown in fig. 13B, the discharge port 23f is concentric with the flow hole 21a in a plan view. The discharge cylinder portion 23c includes a reduced diameter portion 23c2 that reduces in diameter as it approaches the discharge port 23f, and a constant diameter portion 23c3 that does not change in diameter as it approaches the discharge port 23 f.
The nozzle 23 is provided with a plurality of (3 in the present embodiment) arm portions 23j projecting from the inner surface of the nozzle 23. The plurality of arm portions 23j are provided at equal intervals in the circumferential direction. Each arm portion 23j is provided so as to project obliquely toward the inside of the container from the vicinity of the boundary between the reduced diameter portion 23c2 and the constant diameter portion 23c 3.
The regulation wall 23k is supported by a plurality of arm portions 23 j. As shown in fig. 13B, the regulating wall 23k overlaps the flow hole 21a concentrically in a plan view, and the momentum of discharging the contents is reduced as in the regulating wall 23e of embodiment 1. The contents are discharged through the flow holes 23l between the adjacent arm portions 23 j. In the present embodiment, a plurality of flow holes 23l are provided at equal intervals in the circumferential direction.
In the present embodiment, the regulating wall 23k is concentric with the flow hole 21a, and the plurality of flow holes 23l are provided at equal intervals in the circumferential direction, so that the contents can be discharged without being conscious of the orientation of the container in the circumferential direction. As described above, the nozzle 23 of the present embodiment has no directivity in the circumferential direction, and therefore, when attaching the cap, it is not necessary to position the nozzle 23 in the circumferential direction of the cap. Therefore, there is no problem even if the upper cap is a screw-mounted cap.
Further, since the regulating wall 23k is provided at a position apart from the discharge port 23f, even if the content remains on the regulating wall 23k, it is difficult to see the content from the outside.
Fig. 15A shows a state where the contents 25 are discharged from the stacking and peeling container 1 to which the nozzle 23 of the present embodiment is attached. The contents 25 hit the regulating wall 23k, and then flow around the regulating wall 23k and are discharged from the discharge port 23 f. In the present embodiment, the discharge port 23f is not eccentric and the diameter of the discharge port 23f is large, so that the flow of the contents 25 through the discharge port 23f is fast and the space 23m between the discharge port 23f and the flow hole 21a is not normally filled with the contents 25. Therefore, there is a problem that a phenomenon (hereinafter referred to as "airbag") that enters the inner bag 14 through the flow hole 21a after the discharge is likely to occur. Such a problem is solved by embodiment 4.
4. Embodiment 4
Embodiment 4 of the present invention will be described with reference to fig. 14. The present embodiment is similar to embodiment 1, and the difference in the structure of the discharge port 23f and the discharge cylindrical portion 23c of the nozzle 23 is mainly different. Hereinafter, the following description will focus on the differences.
In the present embodiment, the discharge tube portion 23c of the nozzle 23 includes the main body tube portion 23c4 and the reduced diameter tube portion 23c 5. The reduced diameter cylinder portion 23c5 is cylindrical and has a smaller cross-sectional area than the main body cylinder portion 23c 4. In the top surface portion 23c6 of the main body tube portion 23c4, a reduced diameter tube portion 23c5 is provided at an eccentric position and communicates with the main body tube portion 23c 4. A discharge port 23f is provided at the tip of the reduced diameter cylinder portion 23c 5. As shown in fig. 14B, the discharge port 23f is arranged so as not to overlap the flow hole 21a in a plan view.
Since the top surface portion 23c6 overlaps the flow hole 21a in a plan view, the contents passing through the flow hole 21a collide against the inner surface of the top surface portion 23c6, thereby reducing the momentum of discharge. Therefore, the top surface portion 23c6 serves as a regulation wall. Further, since the inner surface of the top surface portion 23c6 is curved so as to be convex upward, the contents that collide with the inner surface of the top surface portion 23c6 are less likely to be guided to the discharge port 23 f. Therefore, as shown in fig. 15B, the space 23m between the discharge port 23f and the flow hole 21a is easily filled with the built-in object 25.
Further, since the discharge port 23f of the present embodiment has a smaller diameter than the above-described embodiment, the flow of the contents 25 through the discharge port 23f is slow. Therefore, the space 23m is more easily filled with the built-in object 25. When the opening area of the circulation hole 21a is S1 and the opening area of the discharge port 23f is S2 in a plan view, S2/S1 is preferably not more than 5. S2/S1 is, for example, 0.2 to 5, specifically, for example, 0.2, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, and may be in a range between any 2 values exemplified herein.
In this way, in the present embodiment, the space 23m is easily filled with the built-in object 25, and the space 23m is filled with the built-in object 25, so that the "airbag phenomenon" can be suppressed.
5. Other embodiments
The present invention can also be implemented in the following manner.
The cap 2 of the present invention may be used for a container other than the laminated and peeled container 1, for example, a single-layer container in which the entire container shrinks as contents are discharged.
[ notation ] to show
1: stacking separation container, 2: cap, 3: container body, 5: valve member, 7: an accommodating part: 7 a: valve member mounting recess portion: 7 b: air circulation groove, 9: a mouth part: 9 a: engaging portion, 9 b: open end, 12: outer shell, 14: inner bag, 15: outside air introduction hole, 21: valve body, 21 a: flow hole, 21 b: annular portion, 21 c: bowl, 21c 1: bottom, 21 d: flange, 21 e: connecting part, 22: inner plug, 22 a: a base and: 22a 1: an upper surface: 22 b: tube section, 22 c: leg, 22 d: valve body support portion, 22 e: engaging portion, 22 f: gap, 23: nozzle, 23 a: insertion tube portion, 23 b: flange, 23 c: discharge tube, 23c 1: regulation wall, 23c 2: reduced diameter portion, 23c 3: constant diameter portion, 23c 4: body tube portion, 23c 5: reduced diameter cylinder portion, 23c 6: top surface portion, 23 d: locking cylinder portion, 23d 1: front end, 23 e: regulation wall, 23e 1: inclined surface, 23e 2: arc portion, 23 f: discharge port, 23 g: connecting wall, 23 h: engaging portion, 23 i: flow hole, 23 j: an arm and: 23 k: regulation wall, 23 l: flow-through hole, 23 m: space, 24: cover, 24 a: tube portion, 24 b: upper wall, 24 c: opening, 24 d: engaging portion, 25: built-in article, G: a space.
Claims (9)
1. A cap to be attached to a mouth portion of a container for accommodating a content, the cap comprising a valve body and a base,
the valve body is provided with a flow hole,
the valve body is configured such that when internal pressure from the built-in object is not applied to the annular portion around the flow hole, the edge of the flow hole abuts against the base to close the flow hole, and when the internal pressure is applied to the annular portion around the flow hole, the valve body elastically deforms so that the edge of the flow hole separates from the base to open the flow hole.
2. The cap of claim 1,
the valve body is provided with a bowl-shaped part,
the flow hole is arranged at the bottom of the bowl-shaped part,
the valve body is configured to elastically deform so that the bowl-shaped portion inverts when the internal pressure is applied to the annular portion around the flow hole.
3. The cap of claim 1 or 2,
the base is provided with an inner plug inserted into the mouth,
the inner plug is provided with a cylinder part and a foot part,
the leg portion is provided between the cylinder portion and the base,
the base is disposed on the leg in a pillar shape.
4. The cap according to any one of claims 1 to 3,
the base is provided with an inner plug inserted into the mouth,
the inner plug is provided with a cylinder part,
the inner circumferential surface of the cylinder part is provided with a valve body supporting part,
the valve body is provided with a flange which,
the flange is supported on the valve body support portion.
5. The cap according to any one of claims 1 to 4,
is provided with a nozzle, a nozzle body,
the nozzle has a discharge cylinder portion,
the built-in object is discharged through a discharge port arranged on the discharge cylinder part,
the discharge cylinder portion is provided with a regulation wall for reducing the momentum of discharging the contents.
6. The cap of claim 5,
the regulating wall is supported by a plurality of arm portions protruding from an inner surface of the nozzle.
7. The cap of claim 5 or 6,
the discharge port is disposed so as not to overlap the flow hole in a plan view.
8. The cap according to any one of claims 5 to 7,
when the opening area of the circulation hole is S1 and the opening area of the discharge port is S2 in a plan view,
S2/S1≤5。
9. a delamination container comprising a container body and a cap, characterized in that,
the container body is provided with an outer shell and an inner bag, and the inner bag contracts with the decrease of the content, and the cap is the cap according to any one of claims 1 to 8.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-244980 | 2017-12-21 | ||
| JP2017244980 | 2017-12-21 | ||
| JP2018059749 | 2018-03-27 | ||
| JP2018-059749 | 2018-03-27 | ||
| JP2018224667A JP7231818B2 (en) | 2017-12-21 | 2018-11-30 | cap and delaminating container |
| JP2018-224667 | 2018-11-30 | ||
| PCT/JP2018/046094 WO2019124247A1 (en) | 2017-12-21 | 2018-12-14 | Cap and laminated release container |
Publications (2)
| Publication Number | Publication Date |
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| CN111225858A true CN111225858A (en) | 2020-06-02 |
| CN111225858B CN111225858B (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201880067037.2A Active CN111225858B (en) | 2017-12-21 | 2018-12-14 | Cap and laminated peeling container |
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| Country | Link |
|---|---|
| JP (1) | JP7231818B2 (en) |
| CN (1) | CN111225858B (en) |
| TW (1) | TWI784106B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7470013B2 (en) | 2020-11-04 | 2024-04-17 | 北海製罐株式会社 | Airless caps and containers with airless caps |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7231818B2 (en) | 2023-03-02 |
| CN111225858B (en) | 2022-08-02 |
| TWI784106B (en) | 2022-11-21 |
| TW201936456A (en) | 2019-09-16 |
| JP2019167160A (en) | 2019-10-03 |
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